Screen-operating mechanism for window-screens



(No Model.)

' 11s. LEARY, gCREEN OPERATING MECHANISM FOR WINDOW SCREENS.

N0. 551,6 3. PatentedDeo. 17, 1895. e

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NIT-En STATES I ATENT Fries.

FRANK S. LEARY, OF OLEBURNE, TEXAS.

SPECIFICATION forming part of Letters Patent No. 551 ,643, datedDecember 17', 1895.

Application filed June 20, 1895. Serial No. 553,446. (No model.)

To all whom it may concern:

Be it known that I, FRANK S. LEARY, a citizen of the United States,residing at Oleburne, in the county of Johnson and State of Texas, haveinvented new and useful Improvements in Screen-Operating Mechanism forWindow} Sashes, of which the following is a specification.

This invention relates to that type of window-screens which are raisedbythe movement of the upper window-sash frame by devices or means which,as ordinarily arranged, are exposed to View, detract from the desirableappearance of the window, and are therefore objectionable.

The objects of my invention are to avoid the objection alluded to, andto provide new and improved means whereby the windowsoreen is positivelyraised and lowered by gear connections with the upper-sash frame, andthe gearing is so arranged and housed that it is entirely concealed fromview, which is very desirable, while the movement of the upper sash inone direction moves the screen inthe reverse direction,the constructionbeing such that the motion-transmitting gearing does not in any mannerinterfere with the use of ordinary window-sashes balanced by weights orsprings, or the use of sashes of which the upper one only is movable.

To accomplish these objects my invention consists essentially in thecombination, with a window-frame, a movable sash, and a mov ablewindow-screen, of a pair of wheels rotated by the movement of the sash,and a motion-reversing wheel rotated by one of said pair of wheels andin engagement with the screen for raising and lowering the same as thesash is lowered and raised.

The invention also consists in the combination of a pair of pinionsjournaled in a chamber or recess in the window-jamb, a rack mounted onthe edge of the movable sashframe, a motion-reversing gear arranged inoperative connection with one of said pinions, and a window-screenhaving a rack in operative connection with said gear, whereby thewindow-screen is positively raised when the upper sash is lowered andconversely.

The invention is illustrated by the accompanying drawings, in whichFigure 1 is a broken front elevation of suf ficient of a window-frameand adjuncts to enable my invention to be clearly understood; and Fig. 2is an enlarged detail sectional view taken on the line 2 2, Fig. 1.

' In order to enable those skilled in the art to make and use myinvention, I will now describe the same in detail, referring to thedrawings, wherein- The numeral 1 indicates a jamb of a window-frame; 2,the upper sash; 3, the lower sash; 4:, a vertically-movablewindow-screen, and 5 the ordinary blind-stop.

The I window;frame, the sashes, and the screen may be of any ordinaryconstruction suitable for the purpose in hand. The sashes may bebalanced by weights or springs, or the lower sash may be a fixture andthe upper sash only movable, if desired.

The window-jamb is constructed with a chamber or recess 6, ofapproximately rectangular form, and in this recess is arranged ametallic boxing or frame 7, of sufficient depth to receive a pair ofpinions 8 and 9, which are rigidly secured to, or otherwise mountedupon, an axle or shaft'lO, having its extremities journaled in the sides12 of the metallic boxing or frame 7. The two pinions 8 and 9 areseparated from each other, so that they can be placed in operativeconnection respectively with the upper sash 2 and the windowscreen 4.For this purpose the upper sash is provided at one edge with a rack 13,set in a groove in the sashframe, and engaging the teeth of the pinion8. The boxing or housing 7 is constructed at one end with projectingcheek-pieces 14, supporting the axle or shaft 15 of a motion-reversinggear 16 which engages the pinion 9, and also engages arack 17 secured ina groove in the edge of the win- (low-screen 4.

The blind-stop 5 is provided with a vertical guide-rib 18 of anysuitable form in cross-section, which enters into a groove or guideway19 in the edge of the sash near rack 17. The guide-rib 18 guides thewindow-screen in its vertical movements and retains it in properposition in the window-frame;

The motion-reversing gear 16 is employed for the purpose of reversingthe direction of motion imparted by the pinion 9, so that by thelowering movement of the upper sash 2 the window-screen 4 is raised, andconversely when the upper sash is raised the windowscreen is lowered.The provision of the gearing described and shown causes the windowsereento be positively raised and lowered by the movement of the upper-sashframe.

The construction and arrangement of parts described and shown are suchthat the gearing does not in any manner interfere with the use ofordinary window-sashes balanced by weights or springs, or with the useof sashes of which the lower one only is movable.

The arrangement of the gearing as shown and described places it entirelyout of view, so that it is invisible and does not detract from thedesired general appearance of the wimlow-l'rame sashes and screen, inwhich respect my invention is very advantageous, and is superior toprior exposed mechanisms for raising a wiiulow-sereen by the movement ofthe upper-sash. frame.

The gearing herein described and shown is composed of toothed. wheels;but-it will be obvious that instead of the wheels being provided withteeth, they may have smooth peripheries, one wheel, as 8, being rotatedby frictional contact with the edge of the upper sash 2, and the otherwheel J serving to rotate the wheel 10 by friction while the wheel ll;is in frictional contact with the windowscreen i, all of which will beobvious, and for which reason I do not deem it necessary to illustratethe same in the drawings.

I have only illustrated the gearing at one side of the window, butobviously the gearing can be duplicated at the opposite side, and thisis preferable in order to secure a perfect and smooth operation of thewindow-screen.

Having thus described my invention, what I claim is 1. The combinationwith a window-frame, a movable sash,and a movable wi ndoiwsereen, of apair of wheels rotated by the movement of the sash, and a motionreversing wheel rotated by one of said pair of wheels and in engagementwith the screen for raising and lowering the same as the sash islowered. and raised.

2. The combination of a pair of pinions journaled in a chamber or recessin the window-,jamb, a rack mounted. on the edge of the movablesash-frame, a motion reversing gear arranged in operative connectionwith one of said pinions, and a window-screcn having a rack in operativeconnection. with said gear, whereby the window-screen is positivelyraised when the upper sash is lowered and conversely.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit nesses.

FRANK. Liihilti". Witnesses:

V. L. llALEY, L. M. LA'YTON.

